78683920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 160

約数和(自身を含む): 224985600

約数和(自身を除く): 146301680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 41, 46, 56, 70, 80, 82, 92, 112, 115, 140, 149, 161, 164, 184, 205, 230, 280, 287, 298, 322, 328, 368, 410, 460, 560, 574, 596, 644, 656, 745, 805, 820, 920, 943, 1043, 1148, 1192, 1288, 1435, 1490, 1610, 1640, 1840, 1886, 2086, 2296, 2384, 2576, 2870, 2980, 3220, 3280, 3427, 3772, 4172, 4592, 4715, 5215, 5740, 5960, 6109, 6440, 6601, 6854, 7544, 8344, 9430, 10430, 11480, 11920, 12218, 12880, 13202, 13708, 15088, 16688, 17135, 18860, 20860, 22960, 23989, 24436, 26404, 27416, 30545, 33005, 34270, 37720, 41720, 42763, 47978, 48872, 52808, 54832, 61090, 66010, 68540, 75440, 83440, 85526, 95956, 97744, 105616, 119945, 122180, 132020, 137080, 140507, 171052, 191912, 213815, 239890, 244360, 264040, 274160, 281014, 342104, 383824, 427630, 479780, 488720, 528080, 562028, 684208, 702535, 855260, 959560, 983549, 1124056, 1405070, 1710520, 1919120, 1967098, 2248112, 2810140, 3421040, 3934196, 4917745, 5620280, 7868392, 9835490, 11240560, 15736784, 19670980, 39341960, 78683920]

約数ペア:

[(1, 78683920), (2, 39341960), (4, 19670980), (5, 15736784), (7, 11240560), (8, 9835490), (10, 7868392), (14, 5620280), (16, 4917745), (20, 3934196), (23, 3421040), (28, 2810140), (35, 2248112), (40, 1967098), (41, 1919120), (46, 1710520), (56, 1405070), (70, 1124056), (80, 983549), (82, 959560), (92, 855260), (112, 702535), (115, 684208), (140, 562028), (149, 528080), (161, 488720), (164, 479780), (184, 427630), (205, 383824), (230, 342104), (280, 281014), (287, 274160), (298, 264040), (322, 244360), (328, 239890), (368, 213815), (410, 191912), (460, 171052), (560, 140507), (574, 137080), (596, 132020), (644, 122180), (656, 119945), (745, 105616), (805, 97744), (820, 95956), (920, 85526), (943, 83440), (1043, 75440), (1148, 68540), (1192, 66010), (1288, 61090), (1435, 54832), (1490, 52808), (1610, 48872), (1640, 47978), (1840, 42763), (1886, 41720), (2086, 37720), (2296, 34270), (2384, 33005), (2576, 30545), (2870, 27416), (2980, 26404), (3220, 24436), (3280, 23989), (3427, 22960), (3772, 20860), (4172, 18860), (4592, 17135), (4715, 16688), (5215, 15088), (5740, 13708), (5960, 13202), (6109, 12880), (6440, 12218), (6601, 11920), (6854, 11480), (7544, 10430), (8344, 9430)]